m-PEG3-Ms

m-PEG7-4-nitrophenyl carbonate

m-PEG6-azide

PEG11，Decaethylene glycol， HO-PEG10-OH

m-PEG25-NHS ester

m-PEG37-hydrazide

m-PEG3-acid，m-PEG2-CH2CH2COOH，二乙二醇单甲醚丙酸

m-PEG5-Tos

THP-PEG5，THP-PEG4-OH

PEG21，HO-PEG20-OH

m-PEG12-CH2CH2NHCH2CH2COOH，m-PEG12-NH-C2-acid

m-PEG11-Tos

m-PEG8-thiol，巯基八甘醇单甲醚

Iodoacetamido-PEG8-acid

PEG17，HO-PEG16-OH

m-PEG7-NHS ester

1,1,1-Trifluoroethyl-PEG5-alcohol

m-PEG7-aldehyde，m-PEG6-CH2CH2CHO

Hydroxy-PEG1-methyl ester，Hydroxy-PEG1-C2-methyl ester，Methyl 3-(2-hydroxyethoxy)propanoate

m-PEG6-Ms